M 7.8 in Antarctica on 17 Nov 2013 09:04 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

This earthquake is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 7.8M
Depth: 10 Km
Event Date: 17 Nov 2013 09:04 UTC
17 Nov 2013 06:04 Local
Exposed Population:
No people within 100km
Source: NEIC
Inserted at: 17 Nov 2013 09:35 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NEIC 0 0.3 0.5
Scaled population (vector) n.a Max wave scenario 0m  
  C1 earthquake n.a Max wave realtime 0.32m  
  C2 earthquake n.a      
  Country Vulnerability n.a      
  INFORM_normalised n.a      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1022399 0.5 17 Nov 2013 09:04 7.5M, 10km N/A No people affected (in 100km) 0m (at 00:00) 00:12 GEOFON
1022402 0.5 17 Nov 2013 09:05 7.8M, 41.5km N/A No people affected (in 100km) 0.3m (at 03:18) 00:13 USGS
1022404 0.5 17 Nov 2013 09:04 7.8M, 42km N/A No people affected (in 100km) 0.3m (at 03:18) 00:18 NEIC
1022408 0.5 17 Nov 2013 09:04 7.3M, 10km N/A No people affected (in 100km) 0m (at 00:00) 00:24 NEIC
1022410 0.5 17 Nov 2013 09:04 7.8M, 10km N/A No people affected (in 100km) 0.3m (at 03:14) 00:30 NEIC
The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.
The episode that has the last updated information.
* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Tsunami affected locations

The maximum Wave height is  0.3m in Grytviken, South Georgia / South Sandwich Islands. This height is estimated for 17-Nov-2013 12:17:38.

Alert Date (UTC) Name Country Wave height (m)
17-Nov-2013 12:17:38 Grytviken South Georgia / South Sandwich Islands  0.3
17-Nov-2013 12:23:38 Stanley Falkland Islands (Islas Malvinas)  0.1

See full locations list (RSS)


Initial conditions

Title: "M7.8 Scotia Sea"

Fault parameters

  • Latitude: -60.296
  • Longitude: -46.362
  • Length: 125 km
  • Width: 35 km
  • Magnitude: 7.8 M

Okada parameters:

  • Slip: 3.2 m
  • Strike: 90 (geogr angle: north=0, south=180)
  • Dip: 45 degree
  • Rake: 90 degree
  • Depth: 10 km

Calculation parameters

  • Calculation space (lon/lat): -58.362, -70, -34.362, -48.296
  • Instead of Step -> use Cell size:1.08 minutes

Sea Level

More information

  • Timeline:
    Tsunami calculations performed to this case, click here

For a full list of available products related to this event, please refer to the GDACS Resources page.